Precise temperature sensing with nanoscale thermal sensors based on diamond NV centers

Sunuk Choe, Jungbae Yoon, Myeongwon Lee, Jooeon Oh, Dongkwon Lee, Heeseong Kang, Chul-Ho Lee, Donghun Lee

Research output: Contribution to journalArticle

Abstract

Sensing temperature with high precision and high spatial resolution is challenging and requires novel temperature measurement techniques. Recently, an atomic-scale thermal sensor based on a defect center in diamond, i.e., a nitrogen-vacancy (NV) center, has been developed, and successfully demonstrated temperature sensing at the mK level and a few tens of nanometers. Here we discuss a temperature sensing mechanism based on the NV center in both experimental and theoretical aspects. At room temperature, we show temperature sensing over a wide-range of temperatures ∼90 K with a precision of 0.2 K. We also map temperature gradients in a bridge-like device a few hundreds of micrometers long. In addition, we theoretically compare three sensing protocols and analyze temperature sensitivity to find optimal measurement time and NV concentration for the ensemble measurement.

Original languageEnglish
Pages (from-to)1066-1070
Number of pages5
JournalCurrent Applied Physics
Volume18
Issue number9
DOIs
Publication statusPublished - 2018 Sep 1

Fingerprint

Diamond
Vacancies
Diamonds
Nitrogen
diamonds
nitrogen
sensors
Sensors
Temperature
temperature
temperature measurement
Hot Temperature
Time measurement
micrometers
temperature gradients
Temperature measurement
Thermal gradients
spatial resolution
time measurement
high resolution

Keywords

  • Diamond NV center
  • Nanodiamond
  • Temperature sensing

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Precise temperature sensing with nanoscale thermal sensors based on diamond NV centers. / Choe, Sunuk; Yoon, Jungbae; Lee, Myeongwon; Oh, Jooeon; Lee, Dongkwon; Kang, Heeseong; Lee, Chul-Ho; Lee, Donghun.

In: Current Applied Physics, Vol. 18, No. 9, 01.09.2018, p. 1066-1070.

Research output: Contribution to journalArticle

Choe, Sunuk ; Yoon, Jungbae ; Lee, Myeongwon ; Oh, Jooeon ; Lee, Dongkwon ; Kang, Heeseong ; Lee, Chul-Ho ; Lee, Donghun. / Precise temperature sensing with nanoscale thermal sensors based on diamond NV centers. In: Current Applied Physics. 2018 ; Vol. 18, No. 9. pp. 1066-1070.
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